To Fix Missing Media and Corrupt Files in Family Tree Maker, begin by thoroughly checking your media folder for any absent files and reattaching them to their corresponding individuals in your family tree. For corrupted files, attempt to repair them using available software tools or revert to backups if accessible. If repairs are unsuccessful, seek expert assistance or recreate the files from alternative sources. Regularly backing up your Family Tree Maker database can also help mitigate future issues. By addressing these challenges promptly, you can maintain the accuracy and completeness of your family history records in Family Tree Maker.